Nanosciences

Computer simulations showed that changing the coverage of the monolayer changed the smoothness of the surface. Both low coverage and high coverage produced very slippery surfaces, but for different reasons. [Source: Sakari Lepikko et al 2023]

The smoothest surface ever created

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The smoothness of a surface can be adjusted by changing its roughness at the molecular level - this is how researchers from Finland demonstrate
Close-up of a zebrafish eye. A sophisticated and accurate vision system

A look at the fish's eye

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The scientists took advantage of the fact that chirality affects an electron property called "spin", which is characterized by two states - "spin up" and "spin down" - similar to the spinning of a spinning top clockwise or counterclockwise. Illustration: Prof. Ron Naaman, Weizmann Institute

Molecular spin in the laboratory

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Cells. Illustration: shutterstock

The genetic internet

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Nose. Illustration: Spokesperson of the Weizmann Institute

Weizmann Institute of Science scientists inserted a miniature "nose" into a living cell

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Air pollution in Beijing. Photo: 大杨.

New window screens will filter air pollutants

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Illustration of the energy dissipation process in graphene: an energetic electron (in red) is released from a local trap created by an atomic defect in the graphene structure, loses energy as a result (in blue) and slightly vibrates the structure (in orange). Source: Weizmann Institute magazine.

The flaws that heat up

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The photonic big bang: weak disorder creates a weak nanometric separation between photons with opposite spin (red and blue) - "photonic spin-Hall effect". Only in complete disorder does the "photonic explosion" occur - photons with opposite spins split and fill the entire momentum space - the "photonic Rashba effect". The phenomenon describes a topological phase transition that manifests itself in symmetry breaking. The research was inspired by models in cosmology that describe the Big Bang. Silicon nanoantennas are depicted in the picture, and the transition from antennas ordered in their direction to complete disorder is expressed by measuring a sharp increase in entropy (as a measure of disorder). Source: Technion.

The "big bang" in nanooptics

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Gold nano-allotropes in a transmission electron microscope (top) and electron tomography (bottom). Source: Weizmann Institute magazine.

Dwarven architecture

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The fibers look like Legos in an electron microscope. Source: Weizmann Institute magazine.

Self-assembling proteins

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molecules. Source: kennysarmy / flickr.

The mysteries of the molecule

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A silver nanostructure in the shape of a "bow tie", with a quantum dot trapped in its center (red arrow). Photographed using an electron microscope

Nano bow ties

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